What does fault code P0021 mean?

Technical information for fault code P0021.

Powertrain (Engine & Gearbox)Standard EOBD

P0021

System

Powertrain (Engine & Gearbox)

Intake Air Temperature Sensor 1 Circuit High Bank 2

Turbocharger/Supercharger Boost Control Solenoid B Circuit Range/Performance

Intake Air Temperature Sensor 2 Circuit Intermittent/Erratic

Charge Air Cooler Temperature Sensor Circuit Low (Bank 1)

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